JPH11267237A - Automatically warning device and safety band for work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatically warning device and a safety band for work with which safety band hooking for work such as building or construction at a height can be effectively prevented from being forgotten. SOLUTION: This device is provided with a coil 2, electrification sensor 3, timer 6, warning means 5 and control means 4, and when a detecting signal showing the generation of electromotive force is received from the electrification sensor 3 within prescribed time counted by the timer 6, the control means 4 outputs a reset signal to the timer 6. When the detecting signal showing the generation of electromotive force is not received within the time, a caution issue signal is outputted to the warning means 5 and the warning means sounds a caution. The coil 2 of this automatically warning device 1 is provided on the hook for the safety line of the safety band and when the hook is not attached to a main rope, the caution is issued.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an automatic warning device and a safety belt for work.

[0002]

2. Description of the Related Art As shown in FIG. 8 and FIG.
In order to protect himself from a crash, the safety belt 51 is attached to the waist, and a clasp 53 such as a hook provided at the tip of the lifeline 52 is attached to the parent line 54, the ramp 55, and the like to perform the work.

[0003]

However, workers A,
Some of B ... just forget to attach the clasp 53 to the parent rope 54, and may slip and cause a crash. The present invention provides an automatic warning device that can be used very effectively, for example, in a case where the safety band clasp is to be prevented from being forgotten to be stopped in work at a high place as described above. Make it an issue. Another object of the present invention is to provide a safety belt for work that can effectively prevent forgetting to stop the clasp.

[0004]

The above object is achieved by a coil,
A detecting means for detecting whether or not an electromotive force is generated due to a change in magnetic flux in the coil, a warning means, and a warning signal is output to the warning means when the detection signal from the detecting means that the electromotive force is generated is not received. The automatic alarm device is characterized in that the automatic alarm device comprises:

In this device, when the coil and the magnetic body operate relatively, the magnetic flux changes in the coil, and an electromotive force is generated in the coil. In this case, the warning means does not issue a warning. On the other hand, if neither the coil nor the magnetic body operates, the magnetic flux does not change in the coil, and therefore no electromotive force is generated. At this time, the warning means gives a warning.

Therefore, in the automatic warning device of the present invention, a warning is required when the coil and the magnetic material are relatively operating, and a warning is required when the coil and the magnetic material do not operate. It can be suitably applied and used in various situations, and an appropriate warning can be issued.

[0007] Specifically, for example, it is preferable to apply the automatic warning device to a safety belt for work and to provide a coil with a stopper for a lifeline, as one of suitable application examples. it can.

In other words, in this application example, the state in which the work is performed by attaching a clasp to a magnetic material, for example, a master rope,
Since the clasp moves in and out along the lifeline due to the work, the coil and the magnetic body operate relatively, and an electromotive force is generated in the coil, which is determined to be a warning unnecessary state. As a result, the work can proceed safely. On the other hand, in the state where the parent rope has forgotten to stop the clasp, there is no movement of the magnetic material to the clasp, so no electromotive force is generated in the coil. It is determined to be in a warning state and a warning is issued. Based on this warning, the worker notices that the clasp is not attached to the master rope, and can attach the forgotten clasp to the master rope and proceed with the subsequent work safely. Can be.

In the above automatic warning device, a timer is provided, and the control means sends a reset signal to the timer when the control means receives a detection signal indicating that an electromotive force is generated from the detection means within a predetermined time counted by the timer. Output the warning signal to the warning means when the detection signal indicating that the electromotive force is generated from the detection means is not received from the detection means within the predetermined time. It is determined that a warning is required only after a predetermined time elapses without immediately determining that a detection signal indicating that an electromotive force has been generated from the device has not been received.

[0010] Therefore, the automatic warning device configured as described above has various kinds of warning states that it is necessary to warn that neither the coil nor the magnetic body operates and that the operation has continued for more than a predetermined time. In such situations, it can be suitably applied and used, and an appropriate warning can be issued.

Specifically, for example, it can be suitably used by applying to the above-mentioned safety belt for work. That is, depending on the content of the work, even when the work is being performed with the clasp attached to the parent rope, there may be a state in which the clasp does not move in and out along the lifeline. . In such a case, if a warning was issued simply because the clasp does not move along the lifeline,
Warnings may be issued in a random manner, thereby reducing the reliability of the device. Therefore, by providing a timer and adopting the above-described control configuration, it is possible to detect that the detection signal from the detection means that the electromotive force is generated is not received, and that the detection signal continues for a predetermined time. For the first time, it is determined that a warning is required, and the device functions well.

[0012]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a warning device 1 according to the present invention. In the warning device 1, reference numeral 2 denotes a coil, 3 denotes an energizing sensor as a detecting means, 4 denotes a control means, 5 denotes a warning means, and 6 denotes a timer.

The energization sensor 3 is provided in the circuit 7 of the coil 2 and detects whether an electromotive force is generated in the coil 2 and a current flows through the circuit 7, and thereby detects whether or not the electromotive force is generated. Is what you do. Various types may be used as the energization sensor 3 or the detection means.

The warning means 5 may be any as long as it displays some kind of warning. For example, it may be based on a sound generator, a vibrator, or an optical means such as turning on or blinking a light.

The control means 4 is, for example, a microcomputer or the like, and performs the following control based on the relationship between the energization sensor 3 and the timer 6 described above.

That is, as shown in FIG. 2, after starting, in step S1, it is determined whether or not a predetermined time set in the timer 6 has been reached. It is determined whether or not the electromotive force of the coil 2 is generated based on whether or not the energization signal is input from the sensor 3. If there is an electromotive force, the process proceeds to step S3, where a reset signal is output to the timer 6, and the timer 6 starts counting time from the beginning. Then, the process returns to step S1 to repeat the above determination. This repetition indicates that the coil 2 and the magnetic body 9 are performing relative operations within a predetermined time set in the timer 6, and indicates that no warning is required. .

If it is determined in step S2 that no electromotive force is generated, the process proceeds to step S1, and steps S1 and S2 are repeated. In this repetition, if it is determined in step S1 that the predetermined time has been exceeded, the process proceeds to step S4, where a warning issuance signal is output to the warning means 5, and based on the signal, the warning means 5 issues a warning in some form as described above. I do. In other words, this indicates that the relative operation between the coil 2 and the magnetic body 9 has not been performed even if the predetermined time set in the timer 6 has been exceeded, and the control means 4 is in a warning required state. It is determined that. It is preferable that the timer 6 can adjust the set time.

FIG. 4A shows a work safety belt 10 provided with the above-mentioned automatic warning device 1. Reference numeral 11 denotes a body-tightening belt, and a lifeline 12 is attached to the belt 11,
At the tip of the lifeline 12, a hook 13 as a stopper is provided. In addition, 14 is a buckle, 15 is a belt loop,
16 is a lifeline storage bag. Then, as shown in FIG. 4B, the coil 2 is built in the hook 13, and the coil 2
Lead wires 17 and 17 from the
Stretched to the side. Then, a unit 18 in which the energization sensor 3, the above-mentioned warning means 5, the timer 6, the control means 4, a battery and the like are incorporated is attached to the belt 11, and the conducting wires 17 and 17 are connected to the energization sensor 3 of the unit 18. I have.

In the above-mentioned safety belt 10 for work, as shown in FIG. 5, the hook 13 is attached to the main rope 19 provided with a magnetic material, and when the hook 13 is moved along the main rope 19, the coil of the hook 13 is coiled. 2, an electromotive force is generated, a current flows through the conductive wires 17, 17, and the conduction sensor 3 detects the generation of the electromotive force. On the other hand, when the lifeline 12 is still stored in the lifeline storage bag 16 or the hook 13 is not attached to the parent line 19 simply because it is hung from the belt 11, no electromotive force is generated in the coil 2 and the coil 2 is energized. Sensor 3 does not work.

As shown in FIG. 6, when workers A and B attach the work safety belt 10 to their waist and perform work at a high place, the hook 13 of the lifeline 12 like the worker A is used. When the work is performed by attaching to the master rope 19, the hook 13 operates with respect to the master rope 19 by the work, and the coil 2
Is generated, the automatic warning device 1 determines that a warning is not required, and no warning is issued. Further, depending on the work content, even if the hook 13 does not operate on the parent rope 19 for a time shorter than the time set in the timer 6, it is determined that no warning is required, and no warning is issued. .

However, if the worker 13 forgets to attach the hook 13 of the lifeline 12 to the parent line 19, as in the case of the worker B, for example, as shown in FIG. A warning such as "Is the safety belt off?" Is issued, and the worker B is alerted. Thereby, the worker B is aware that the hook 13 has not been attached to the master rope 19, and can attach the hook 13 to the master rope 19 to safely continue the work.

As shown in FIG. 7, the same applies to the operation in which the hook 13 is attached to the ramp 20 having a magnetic material. The partner having the magnetic material may be of various types.

When the automatic warning device 1 is provided with an operation start switch, the switch may be provided in the safety belt 10, or the receiver may be provided in the safety belt 10. Alternatively, the transmitter may be provided separately from the safety belt 10, and the switch of the warning device 1 may be remotely operated. In the latter case, for example, a site supervisor has a transmitter, and in work, remotely sends a switch-on signal to the safety belt of each worker, whereby the safety management of the worker can be comprehensively performed.

Although the embodiment of the present invention has been described above, the automatic warning device of the present invention is not limited to application to the work safety belt 10. In short, in various situations where the generation of an electromotive force in the coil 2 is a warning unnecessary state and the generation of an electromotive force in the coil 2 is a warning required state,
It is widely applied and used conveniently. Further, as shown in FIGS. 3 (a) and 3 (b), the timer is omitted and only the presence or absence of the generation of the electromotive force is determined (step S1). In this case, a warning signal is output to the warning means 5 (step S).
2) It may be configured.

[0026]

As described above, according to the present invention, the automatic warning device of the present invention can be used as a coil, a detecting means, a warning means, and a warning means when no detection signal indicating the occurrence of electromotive force is received from the detecting means. Since a control means for outputting a warning signal is provided, it is necessary to make it unnecessary to warn that the coil and the magnetic body are relatively operating, and to operate neither the coil nor the magnetic body. It can be suitably applied and used in various situations such as a warning state, whereby an appropriate warning can be issued.

Moreover, since the electromotive force generated in the coil due to the relative operation between the coil and the magnetic material is used, the power consumption is small and it is very economical.

Further, a timer is provided, and the control means comprises:
When a detection signal indicating that an electromotive force has been generated is received from the detection means within a predetermined time counted by the timer, a reset signal is output to the timer, and the detection of the occurrence of an electromotive force from the detection means is performed within the predetermined time. When a signal is not received, a warning issuance signal is output to the warning means.Therefore, it is necessary to warn that neither the coil nor the magnetic body will operate and the operation will not be performed for more than a predetermined time. It can be suitably applied and used in various situations such as states, and an appropriate warning can be issued.

[0029] For example, by providing the above-mentioned automatic warning device in the work safety belt and providing the coil in the clasp of the lifeline, work at a high place in a building or a construction site can be performed. In this case, it is possible to extremely effectively prevent the safety band from being forgotten to stop, and to carry out the operation safely.

[Brief description of the drawings]

FIG. 1 is a device configuration diagram showing an embodiment of an automatic warning device of the present invention.

FIG. 2 is a flowchart of control in the warning device.

FIG. 3 shows another embodiment, and FIG. 3A is a configuration diagram of the apparatus, and FIG. 3B is a flowchart of control.

FIG. 4 shows an example of application to a safety belt. FIG. (A) is an overall side view of a state in which the safety belt is straightened, and FIG.
FIG. 4 is an enlarged side view showing a hook portion.

FIG. 5 is a perspective view showing an operation state in which an electromotive force is generated in a coil provided in the hook.

FIG. 6 is a side view showing a use state of a safety belt at a work site.

FIG. 7 is a side view showing a use state of the safety belt at another work site.

FIG. 8 is a side view showing a conventional example, showing a use state of a safety belt at a work site.

FIG. 9 is a side view showing a state of use of the safety belt at another work site, similarly showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Warning device 2 ... Coil 3 ... Energization sensor (detection means) 4 ... Control means 5 ... Warning means 6 ... Timer 9 ... Magnetic body 10 ... Safety belt 12 ... Lifeline 13 ... Hook (clasp)

Claims (3)

[Claims] 1. A coil, a detecting means for detecting whether or not an electromotive force is generated in the coil due to a change in magnetic flux, a warning means, and a means for receiving no detection signal indicating that the electromotive force is generated from the detecting means. An automatic warning device, wherein the warning means is provided with control means for outputting a warning signal. 2. A timer is provided, and said control means comprises:
When a detection signal indicating that an electromotive force has been generated is received from the detection means within a predetermined time counted by the timer, a reset signal is output to the timer, and the detection of the occurrence of an electromotive force from the detection means is performed within the predetermined time. 2. The automatic warning device according to claim 1, wherein a warning signal is output to the warning means when no signal is received. 3. A work safety belt provided with the automatic warning device according to claim 1 or 2, wherein the coil is provided on a clasp of a lifeline.